Yeah exactly why I said I adjust the training to fit my needs. I keep the structure/mileage but stack more Hansons/NAZ type mid-week workouts and long runs.
I think the mileage and medium long runs get you super strong, strong enough to tackle the distance at the pace you want to. I also think some of the down weeks are ok to incorporate. I like 1 in every 3 or 4 to just be a week of mileage, strides, and a long run without a planned workout. The volume alone is enough stress to the system but can help you stay healthy when you'll have 8 x mile @ T & 20 w./ 10 @ GMP the week after.